equation 642 377 1402 455
text 297 233 1402 370
text 297 461 1402 603
text 297 672 1401 862
equation 624 610 1402 668
equation 678 1055 1402 1089
equation 684 866 1402 902
text 297 1101 1404 2037
text 297 921 1403 1038